Gas-engine cooler.



N0. 876,s32'. PATENTED JAN. 14, l1908.

' E. E. OEE.

GAS ENGINE COOLER.

APPLICATION FILED APR. 10. 1907.

FRANCIS LEONARD OBR, OF THURMAN, IOWA.

GAS-ENGINE COOLER. i

Specification of 4Letters Patent.

. Patented Jan. 14, 1908.

Application filed April l0, 1907. Serial No. 367.346.

`To all whom it may concern:

Be it known that I, FRANCIS LEONARD OER, a citizen of the United States, and resident of Thurman, in the county of Fremont and State of Iowa, have- 'invented an Imroved Gas-Engine Cooler, of which the folowing is a specification.

. This invention is designed as an improvement on an engine starter for which Letters Patent N o. 837,953, were granted to me, December 11, 1906.

In my Letters Patent aforesaid, I illustrate and describe means adapted to store expanded gases in a storage tank, and means whereby pressure of the stored gas, may be employed to boost, or start the engine in action.

In the form of engine starter above re-- ferred to, Iemployed two passageways extending from thecombustion endof an internal combustion engine to a tank adapted to hold gas' under pressure. N ow I have discovered that the hot expanded gases conveyed into the storage tank-aforesaid, remain at such high temperature that when used as boosting force in starting the engine, the passageway at its engine-end becomes unduly hot, causing preignition of the engine charge, an operation or effect likely to damage the engine, or occasion danger well understood and `desirable to be avoided.

This invention is mainly designed as a coolin attachment to the form of engine starter fu ly described in the Patent No. 837,953, but is equally adapted for use with other forms of engine starters employing expanded or stored hotgases as the boosting motive power, and therefore I do not conine myself inits use to any particular form of explosive or hot-air engine.

The accompanying drawing illustrates my invention by sectional view showing one embodiment thereof in operative connection with the power cylinder of a gas engine. The fragmentaryportion of power-cylinder shown by the view is chieiy diagrammatic of the combustion end of the cylinder, and the other.

features shown may also be stated as being in diagram, since they may be modified in arrangement, vand automatically operated valves employed for control of gas flowing through the hot air passageways.

In the drawing, A designates a fragmentary portion of a gas engine, more definitely stted, the combustion end of the engine cyl- 1n er.

B designates a water tank, and C a tank adapted to hold hot gases under pressure.

My perfected invention comprehends the use of a pipe Dextending from the expansion chamber of the engine cylinder A, having a check-valve E therein, adapted 'for automatic closure of passageway therethrough, leading from the storage tank. In other Words, free flow of expanded gases is thereby permitted passageway through the pipe D from the cylinder A to and into the tank C, but thereby checked against back How through the pipe D. In the pipe D, I locate a cut-off valve F, shown as an ordinary plugvalve, but obviously any other form of valve maybe substituted therefor.

,G designates a pipe which may be arranged extending from a location H inthe pipe D, adjacent to the engine-cylinder A, as shown, and with said pipe extendedpto the tank C, thereb providing passageway from the cylinder X to and into the tank C.' In the pipe G, I rovide a controller valve I shown as a Simp e turning-plug, but obviously, said valve I may be of any other suitable form, as for instance, similar to the valve lD illustrated and described in my Letters Patent No. 837,953, hereinbefore referred to.

-AThe pipes D and G constitute connecting passageways between the cylinderA and tank C for the conveyance of exhaust or hot expanded gases fromone to 'the other thereof.

Pressure of gas stored in the tank C is designed to be employed as motive or boosting ower, to start the engine in operation, and it will be understood that during operation of the engine-piston, not shown, that exhaust from the cylinder A will iiow through the pipe D, opening the check valve E, and

thence pass into the tank C, but obviously the valve F should be adjusted adapted` for the urpose.

Tiie valve I should be at closing adjustment while the tank is being stored. vN ow assuming that the engine is at rest; arid'it is desired to start it in operation, obviously when the valve I is adjusted to open position, ressure of gas will liow through the pipe 1, conveying motive power into the engine cylinder A, with pressure designed to start the engine in operation, as well understood, and one' embodiment thereof being full described in my Letters Patent aforesai The above statement in connection with the following description of the essenfact of actual experience wit tial, or detail features of my coo means,` will render the invention fully un erstood. Now it is apparent that the hot gases forced into the storage tank C, will-heat the pipe D at its engine-end, to such degree of temperature, that f reignition of the engine charge would resu t, and the liabilit lthereof is a li the `form of starter covered by my Patent. No. 837,953.

Referring now to the figure of drawing, J

desi ates a pipe roviding open passagewayxleading through a branch pipe K from the water-tank B to and into a water-jacket L on the en ine cylinder A, and M is a return water-pi e eading from the cylinder jacket L to an into the water-tank Inthe practice of my invention, the hot gas conveying pipe D is arranged in the water-pipe J, thereby providing it with a water-jacket from its connection with the engine cylinder to a location in the said pipe J, sufficiently remote from said cylinder to eifectivel cool its exhaust flowing through the pi e D into the storage-tank.

In t e drawing the pi e D is shown extending through a stuling-lbox N, with its outsi e portion D adapted for location therein of the'valves F, E.

It is apparent that during operation of the engine, water will flow from the through the ipe J, the branch pipe K, and thence into t e water space around the engine cylinder A. Continued circulation of the cooling water will flow from the cylinder water-space, throu h the pipe M, and back into the watertan B, and with continued cycle of flow during operation of the engine.

tank B,

I claim:

1. The combination with a gas engine, of a storage-tank, a series of gas passa eways providing communication between t e engine and storage-tank, valves in said passagew a.s,ga water-tank, and passageways pro- Vl lIl and t e en the series t water circulating passageway.

2. Thecombination with an internal comme jacket, a gas passageway in circulation between said water-tank ereof being arranged within the l bustion engine employing a cylinder having A yplpes, of cooling means comprisinga watertank, and circulating passageways connect' the engine-jacket with said water-tank, the gas exhaustor storing pipebeing Varranged within the Watercirculating passagewa s,

adapted to be cooled bywater circulating e-.

tween the .engine and water-tank.

FRANCIS LEONARD ORR.

Witnesses:

BERT LE BRON, W. T. WALKER. 

